Question:
From a balloon rising vertically upwards as $ 5\,m/s $ a stone is thrown up at $10 \,m/s$ relative to the balloon. Its velocity with respect to ground after $ 2\,s $ is (assume $ g=10\,m/s^{2} $ )
From a balloon rising vertically upwards as $ 5\,m/s $ a stone is thrown up at $10 \,m/s$ relative to the balloon. Its velocity with respect to ground after $ 2\,s $ is (assume $ g=10\,m/s^{2} $ )
Updated On: Oct 13, 2022
- zero
- $ 5\, m/s $
- $ 10\,m/s $
- $ 20\,m/s $
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The Correct Option is B
Solution and Explanation
The initial velocity with respect to ground will be $10+5=15 m / s$
after 2 sec its velocity will be $v =15- gt =15-10 \times 2=-5 m / s$
Whose value is $5 m / s$
Once the stone is projected from balloon it will not have any impact of the balloon after that moment.
after 2 sec its velocity will be $v =15- gt =15-10 \times 2=-5 m / s$
Whose value is $5 m / s$
Once the stone is projected from balloon it will not have any impact of the balloon after that moment.
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Concepts Used:
Motion in a straight line
The motion in a straight line is an object changes its position with respect to its surroundings with time, then it is called in motion. It is a change in the position of an object over time. It is nothing but linear motion.
Types of Linear Motion:
Linear motion is also known as the Rectilinear Motion which are of two types:
- Uniform linear motion with constant velocity or zero acceleration: If a body travels in a straight line by covering an equal amount of distance in an equal interval of time then it is said to have uniform motion.
- Non-Uniform linear motion with variable velocity or non-zero acceleration: Not like the uniform acceleration, the body is said to have a non-uniform motion when the velocity of a body changes by unequal amounts in equal intervals of time. The rate of change of its velocity changes at different points of time during its movement.